Hope someone here can give me some good advice.My problem is this:
Several of the 822-16 Comp Cams hydraulic lifters installed in a 440 engine with a 0.525 lift camshaft and double valve springs are very noisy and loose pressure even by hand rotating the engine.
After few turns there is a lot of free play just with a light pressing on rocker arms. The lifters under the pressure of opened valves are almost collapsing overnight.
All this takes to startup with terrible noise ( like a poor diesel Fiat) and I the noise doesn’t disappear until engine very warm, oil pressure is around 80PS with Valvoline 20W 50 VR1 oil.
Thank you in advance
Roberto